dsm-onster
DSM Wiseman
- 8,592
- 124
- Jul 11, 2004
-
Bloxom,
Virginia
I'm just going to take a minigrinder to my garrett flange. I think there's enough meat on it. . .
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quick question, does the hole on the actual oil pan need to be enlarged also?
so is the stock size fine??
Looks great so far....I love what you've done with the eBay manifold to make it actually work with something other than a tiny T3 turbo in terms of clearing the block!
Check your oil pressure at the head before deciding to keep your oil feed there for good. There seems to be TONS of additional information popping up as to why certain turbos fail when fed from the head and others don't, and it seems that oil pressure can be too low at the head if the head has been milled too much, or if you're running a ported oil relief valve with balance shafts and oil squirters.
Looks great. A 45 and the hose makes a sweeping 90 to the oil pan. No tight 90s.
I'd Tee right from the inlet to the CHRA. You'll know for absolite sure what your pressure is. . . But if you have a big line that is short (like usually what guys do when feeding from the head), then as mentioned above checking the pressure at the head on the port that has the allen screw sealing it beside the stock feed location should be fine.
Looking at my holset and garrett oil outlets on the turbo CHRA you will see a 19mm X 16mm rectangle. Doing a bit of trig you can come up with the area that a 19mm diameter CIRCLE will let oil fall into the drain pipe. . .Information taken direct from the Holset service manual for the HX35/40:
Oil return pipes are permitted to decline at an overall angle of not less than 30 degrees below horizontal. All turbocharger applications require a pipe of internal diameter greater than 19 mm which has integrated connectors. To ensure oil drains into the engine under all operating conditions, the return connection into the engine sump must not be submerged and the outlet flange of the turbocharger must be 50 mm above the maximum oil level of the engine sump pan.
.525 " = 13.335 mm, which is WAY under the minimum required drain size for a Holset turbo. If you're using this fitting on your Holset, it's almost certainly going to restrict the oil drainage....possibly putting your turbo at risk for premature failure.
I think I'm on to something.
Looks great- is that -12AN?
I'd keep an eye on that hose to make sure it doesn't kink on you at some point. Even the braided steel hose can kink and once it does, the hose is ruined. It seems like once the braids develop that weak spot it never goes back to normal.
If you were to change only one thing....I'd make the top fitting a 45* also so the hose will have less of a bend on it, lessening the chance for a kink.
My new set up.....
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i might be a little retarted but why do you have hose clamps on the lines?